Which is an example of a sudden change that could lead to the extinction of species? A. a mountain range isolates a species
B. Earth's tectonic plates move
C. a volcano erupts
D. sea level change

D

Explanation:

Right now a similar thing is happening by global warming which is leading to polar bears becoming extinct

Edit:Also B and C happen on a regular basis but rarely lead to the extinction of a species and A would lead to the evaluation of an isolated species

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .